rcl project update 3.1 (dotnet#22307)

* rcl project update  3.1

* new line error fixed and deleted unused css class

aspnetcore/razor-pages/ui-class/samples/cli/RazorUIClassLib/RazorUIClassLib.csproj

@@ -1,11 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
-  <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-  </PropertyGroup>
+	<PropertyGroup>
+		<TargetFramework>netcoreapp3.1</TargetFramework>
+		<AddRazorSupportForMvc>true</AddRazorSupportForMvc>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<FrameworkReference Include="Microsoft.AspNetCore.App" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
-  </ItemGroup>
 
 </Project>

aspnetcore/razor-pages/ui-class/samples/cli/RazorUIClassLib/wwwroot/lib.css

@@ -0,0 +1,4 @@
+.address {
+    padding: 10px;
+    border: 2px dotted gray;
+}

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/Pages/About.cshtml

@@ -8,4 +8,4 @@
 
 <p>Use this area to provide additional information.</p>
 
-@*<partial name="_Message" />*@
+@*<partial name="_Message" />*@

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/Pages/Contact.cshtml

@@ -6,7 +6,7 @@
 <h2>@ViewData["Title"]</h2>
 <h3>@Model.Message</h3>
 
-<address>
+<address class="address">
     One Microsoft Way<br />
     Redmond, WA 98052-6399<br />
     <abbr title="Phone">P:</abbr>

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/Pages/Shared/_Layout.cshtml

@@ -8,6 +8,7 @@
     <environment include="Development">
         <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.css" />
         <link rel="stylesheet" href="~/css/site.css" />
+        <link rel="stylesheet" href="_content/RazorUIClassLib/lib.css" />
     </environment>
     <environment exclude="Development">
         <link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/Program.cs

@@ -1,24 +1,20 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore;
-using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
 
 namespace WebApp1
 {
     public class Program
     {
         public static void Main(string[] args)
         {
-            CreateWebHostBuilder(args).Build().Run();
+            CreateHostBuilder(args).Build().Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
     }
 }

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/Startup.cs

@@ -1,14 +1,8 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.HttpsPolicy;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace WebApp1
 {
@@ -21,22 +15,12 @@ public Startup(IConfiguration configuration)
 
         public IConfiguration Configuration { get; }
 
-        // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
-            services.Configure<CookiePolicyOptions>(options =>
-            {
-                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
-                options.CheckConsentNeeded = context => true;
-                options.MinimumSameSitePolicy = SameSiteMode.None;
-            });
-
-
-            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
+            services.AddRazorPages();
         }
 
-        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {
@@ -45,14 +29,16 @@ public void Configure(IApplicationBuilder app, IHostingEnvironment env)
             else
             {
                 app.UseExceptionHandler("/Error");
-                app.UseHsts();
             }
 
-            app.UseHttpsRedirection();
             app.UseStaticFiles();
-            app.UseCookiePolicy();
 
-            app.UseMvc();
+            app.UseRouting();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapRazorPages();
+            });
         }
     }
 }

aspnetcore/razor-pages/ui-class/samples/cli/WebApp1/WebApp1.csproj

@@ -1,12 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
-  <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.App" />
-  </ItemGroup>
+   <PropertyGroup>
+   	<TargetFramework>netcoreapp3.1</TargetFramework>
+   </PropertyGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\RazorUIClassLib\RazorUIClassLib.csproj" />